text: 'use strict';
  
  const OFF = 0;
  const ERROR = 2;
  
  module.exports = {
    extends: 'fbjs',
  
    // Stop ESLint from looking for a configuration file in parent folders
    'root': true,
  
    plugins: [
      'jest',
      'no-for-of-loops',
      'react',
      'react-internal',
    ],
  
    // We're stricter than the default config, mostly. We'll override a few rules
    // and then enable some React specific ones.
    rules: {
      'accessor-pairs': OFF,
      'brace-style': [ERROR, '1tbs'],
      'comma-dangle': [ERROR, 'always-multiline'],
      'consistent-return': OFF,
      'dot-location': [ERROR, 'property'],
      'dot-notation': ERROR,
      'eol-last': ERROR,
      'eqeqeq': [ERROR, 'allow-null'],
      'indent': OFF,
      'jsx-quotes': [ERROR, 'prefer-double'],
      'keyword-spacing': [ERROR, {after: true, before: true}],
      'no-bitwise': OFF,
      'no-inner-declarations': [ERROR, 'functions'],
      'no-multi-spaces': ERROR,
      'no-restricted-syntax': [ERROR, 'WithStatement'],
      'no-shadow': ERROR,
      'no-unused-expressions': ERROR,
      'no-unused-vars': [ERROR, {args: 'none'}],
      'no-useless-concat': OFF,
      'quotes': [ERROR, 'single', {avoidEscape: true, allowTemplateLiterals: true }],
      'space-before-blocks': ERROR,
      'space-before-function-paren': OFF,
  
      // React & JSX
      // Our transforms set this automatically
      'react/jsx-boolean-value': [ERROR, 'always'],
      'react/jsx-no-undef': ERROR,
      // We don't care to do this
      'react/jsx-sort-prop-types': OFF,
      'react/jsx-space-before-closing': ERROR,
      'react/jsx-uses-react': ERROR,
      'react/no-is-mounted': OFF,
      // This isn't useful in our test code
      'react/react-in-jsx-scope': ERROR,
      'react/self-closing-comp': ERROR,
      // We don't care to do this
      'react/jsx-wrap-multilines': [ERROR, {declaration: false, assignment: false}],
  
      // Prevent for...of loops because they require a Symbol polyfill.
      // You can disable this rule for code that isn't shipped (e.g. build scripts and tests).
      'no-for-of-loops/no-for-of-loops': ERROR,
  
      // CUSTOM RULES
      // the second argument of warning/invariant should be a literal string
      'react-internal/no-primitive-constructors': ERROR,
      'react-internal/warning-and-invariant-args': ERROR,
    },
  
    overrides: [
      {
        files: ['**/__tests__/*.js'],
        rules: {
          // https://github.com/jest-community/eslint-plugin-jest
          'jest/no-focused-tests': ERROR,
        }
      }
    ],
  
    globals: {
      spyOnDev: true,
      spyOnDevAndProd: true,
      spyOnProd: true,
    },
  };
  